The Starbucks Royal Caribbean Navigator of the Seas Been There Mug is a collectible coffee cup featuring a multicolor design with a capacity of 14 fl oz. It is part of the Starbucks Mug Series and showcases various themes such as coffee, tea, and entertainment. The ceramic mug depicts images related to a pool ship, tiki drinks, sports, blaster entertainment, and gambling, making it a unique and entertaining addition to any coffee or tea lover's collection.